Apparatus for producing voltaic high-current arcs.



- PATIENTED MAY-12,1908.

H. PAULING.

APPARATUS FOR PRODUGiNG VOLTAIGHIGH CURRENT ARCS.

APPLICATION FILED SEPT. 30,1907. 1

ma n/erase HARRY PAULING, OF GELSEN'KIRCHEN, GERMANY, AS SIG'NOR TO FIRMOF SALPETE Ra aranfr onion.

siiuaE-INDusTnIaoEsEttsciiirr, e. M. B. H., or GELSENKIRCHEN, GERMANY.

APPARATUS FOR PRODUCING -VCI'L'LLAIC HIGH-CURRENT ARCS.

T 0 all whom it may concern-.- 1 Be it known that I, HARRY PAULING, a

subject of the German Emperor, and resident of 84 VVilhelmstrasse, inGelseiikiiclien IV, iii-the Rrovince of Vl estphalia, Kingdom.

- of Prussia Germanvhave invented certain new and useful Improvements inApparatus for Producing Voltaic High-Current Arcs, of which thefollowing is, a specification.

My inventionlrelats to apparatus for the production ofvoltaichigh-current arcs and i more particularly to device "of the kindin whichthe arcs are produced y means of diverging electrodes and by acurrentfofogas which blows the discharges, umpmg the space of greatestproximity-of the electrodes, along the latter so as to form arcs of therequired great lengths, which'break and extinguish after having attaineda definite length.

The length of the arcs mainly depends, on

one hand, upon the length of the elec-' trodes and upon the anglebetween the lat-.

ter, while on the other hand it is largely dependent on the strength ofcurrent supplied to the electrodes, and on the force of the said currentof gas inasmuch as arcs of great length require an accordingly greatamount of energy as well as the action of an accordingly strong currentof gas, as will be readily so seen. I strength to be considered in thisres ect re- Electric currents, however, of the quire the electrodes to.be according y large in cross section, that is to say thesemust be verythick. The latter requirement in its turn has been found to render itdifl'icult for the said current of gas to blow with sufficient forcebetween the electrodes to produce arcs of the required great length, thereason being that the distance of greatest proximity of the divergingelectrodes must be very short, a few millimeters for instance, in orderthat the energy supplied to the electrodes may be able to jump suchspace automatically. i My present invention allows the electrodes to bedimensioned as thick as may be requisite or desirable in. view of theenergy-to l a strong current of gas.

To such and my invention consists, broadly, in dimensioning the space ofgreatest proximity of the electrodes so that the current ofSpecification of Letters Patent.

Patented May 12, ces.

Application filed September 30,1907. Serial No. 395,314.

lowed .to pass through it freely, that is, without the electrodesintervening in its path, and in providing means for starting thedischarges, which would not take place otherwise on account of'thedistance of greatest proximity of the electrodes being too'large in thisway.

The accompanying drawing shows two a, a are a pair of stationarydiverging eleo.

trodes, and e is a pipe designed to blow a strong current of gas throughthe space of greatest proximity of. the electrodes and in the directionof divergence thereof, as indicated by the arrow. Either of theelectrodes a has a erforation f in which an auxiliary 'electro e b'isadapted to slide. .The electrodes 6 are thus eletrically connectedwith'the electrodes (1. Either of them has a suitable handle or the likeat from which it is insulated by an intermediate piece 0. Thearrangement is such that the distance, between the points of theauxiliary electrodes can be adiusted at will.

While the electrodes (1 may be as broad as requisite or desirable inviewof the energy to be received by them, the electrodes 1), whose pointsnecessarily intervenein the,path of the current of gas leaving the pipec, must be so shaped that they offer the least possible resistance tothe passage 0 this gascurrent. To such end it will be advantageous tomake them in the form of blades, as is shown in Figs. 1 and 3, or ofrods, aswill appear from Fig. 2.

I The function of the arrangement'described is,briefiy, as follows: Thedischarges brought about between the auxiliary electrodes 1; byadjusting these according to the energy sulp plied to the electrodes (1are caused by t e current of gas leaving the pipe 6 to pass over to thediverging electrodes a and are blown along the latter so as to form arcsof great leng hs; after having attained a definite length such arcsbreak and extinguish. Some of t e variations the discharges undergo inthis Way are approximately indicated by dotted lines in the drawing.

In order tofacilitate the passing over of liO gas, blown through suchspace, may be alrods, which constitute the minor details may greatestproximity of the electrodes and in the direction of divergence thereof,the said space being large enough not to disturb a free passage of'thesaid gas current, and a the discharges to the electrodes 0, the auxiliary-elcctrodes b may, in the case of the form of construction shown inFigs. 1 and 2, be beveled at their points, in the manner re resented;with the ig. 3 the same object electrodes and extendis obtained by thenected to the'former the auxiliary elec-" ing into the space stantiallyas specified.

3. In an apparatus for high-current'arcs, the com ination of a ofdiverging electrodes with means for b ing a current of gas throu h thespace of greatest proximity of the e ectrodes and in the direction ofdivergence thereof, the said reducing voltaie space being large enoughnot to disturb the trodes in this case, as shown. c

Changesfi'n the form, proportion, size, and

be made Without; departing from. the spirit or sacrificing any of theadvantages of this invention.

, What I claim is:

. 1. In an apparatus for high-current arcs, the com ination ofa airfree-passage of the said gas current, and a of diverging electrodes withmeans for b .ow- I ing a current of as through the spztce of reattrically connected to the former electrodes est proximity o theelectrodes and in t g/diand extending into rection of divergencethereof, the said space latter, substantially being large enough not todisturb a free passage of the said gas current, and with means forstarting the discharges, substantially. as set forth.

being arranged inclined,

as described.

my name this 22 day of June 1907, in the presence of twosubscribing-witnesses. roducing voltaic I I I l .2. In an apparatus forhigh-current arcs, the com ination of a air Witnesses: of divergingelectrodes with means for b oW-'- CARL Hnmnron, ing a current of gasthrough the space of 1 BronanMSrnfizxnt.

construction disclose in pair of auxiliary electrodes electrically con--betvveen the latter; sub

pair of adwstable auxiliary electrodes elecroducing voltaic l 0W I thespace betvveen the In Witness whereof I have hereunto signed HARRYPAULING. Y

